1suv: Difference between revisions
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[[Image:1suv.jpg|left|200px]]< | [[Image:1suv.jpg|left|200px]] | ||
'''Structure of Human Transferrin Receptor-Transferrin Complex''' | {{Structure | ||
|PDB= 1suv |SIZE=350|CAPTION= <scene name='initialview01'>1suv</scene> | |||
|SITE= | |||
|LIGAND= <scene name='pdbligand=CO3:CARBONATE+ION'>CO3</scene> and <scene name='pdbligand=FE:FE (III) ION'>FE</scene> | |||
|ACTIVITY= | |||
|GENE= TFRC ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9606 Homo sapiens]), TF ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9606 Homo sapiens]) | |||
}} | |||
'''Structure of Human Transferrin Receptor-Transferrin Complex''' | |||
==Overview== | ==Overview== | ||
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==About this Structure== | ==About this Structure== | ||
1SUV is a [ | 1SUV is a [[Protein complex]] structure of sequences from [http://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1SUV OCA]. | ||
==Reference== | ==Reference== | ||
Structure of the human transferrin receptor-transferrin complex., Cheng Y, Zak O, Aisen P, Harrison SC, Walz T, Cell. 2004 Feb 20;116(4):565-76. PMID:[http:// | Structure of the human transferrin receptor-transferrin complex., Cheng Y, Zak O, Aisen P, Harrison SC, Walz T, Cell. 2004 Feb 20;116(4):565-76. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/14980223 14980223] | ||
[[Category: Homo sapiens]] | [[Category: Homo sapiens]] | ||
[[Category: Protein complex]] | [[Category: Protein complex]] | ||
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[[Category: protein complex]] | [[Category: protein complex]] | ||
''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Thu | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Thu Mar 20 14:09:58 2008'' | ||
Revision as of 15:10, 20 March 2008
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| Ligands: | and | ||||||
| Gene: | TFRC (Homo sapiens), TF (Homo sapiens) | ||||||
| Coordinates: | save as pdb, mmCIF, xml | ||||||
Structure of Human Transferrin Receptor-Transferrin Complex
OverviewOverview
Iron, insoluble as free Fe(3+) and toxic as free Fe(2+), is distributed through the body as Fe(3+) bound to transferrin (Tf) for delivery to cells by endocytosis of its complex with transferrin receptor (TfR). Although much is understood of the transferrin endocytotic cycle, little has been uncovered of the molecular details underlying the formation of the receptor-transferrin complex. Using cryo-electron microscopy, we have produced a density map of the TfR-Tf complex at subnanometer resolution. An atomic model, obtained by fitting crystal structures of diferric Tf and the receptor ectodomain into the map, shows that the Tf N-lobe is sandwiched between the membrane and the TfR ectodomain and that the C-lobe abuts the receptor helical domain. When Tf binds receptor, its N-lobe moves by about 9 A with respect to its C-lobe. The structure of TfR-Tf complex helps account for known differences in the iron-release properties of free and receptor bound Tf.
DiseaseDisease
Known diseases associated with this structure: Atransferrinemia OMIM:[190000], Iron deficiency anemia, susceptibility to OMIM:[190000]
About this StructureAbout this Structure
1SUV is a Protein complex structure of sequences from Homo sapiens. Full crystallographic information is available from OCA.
ReferenceReference
Structure of the human transferrin receptor-transferrin complex., Cheng Y, Zak O, Aisen P, Harrison SC, Walz T, Cell. 2004 Feb 20;116(4):565-76. PMID:14980223
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